You change throughout your 20s, 30s, and 40s, so it should be no surprise that your cycles do, too. But are off-schedule, heavy, or otherwise weird periods normal? Here’s how to know—and how to handle it if they’re not.

Exercise, diet—even attitude—can be as important as genetics when it comes to growing old gracefully. “Old age,” as Bette Davis once said, “is no place for sissies.” But that doesn’t mean you need to chicken out. Sure, growing older affects nearly every part of your body—including your hair, skin, heart, muscles, and more—but aging well may be as simple as adopting these (mostly) easy everyday habits.